Collapsible heat directing closure



1945- s; T. HOWARD COLLAPSIBLE HEAT DIRECTING CLOSURE 7 Filed Oct. 16,1942 2 Sheets-She et 1 INVENTOR. award gr'raw/vsy Aug. 14,1945.

S.v T. HQWARD COLLAPSIBLE HEAT DI RECTING CLOSURE Filed Oct. 16, 1942 2Sheets-Sheet 2 5 *o INVENTOR.

Lfff l ef H0 uJO BY 1 arraK/YEY Patented Au 14, 1945 The invention"described herein; if patented, m'ay be manufactured and used by' or' forthe Government for governmeritar purposes without thepaymeiittonieof hyrOyalty' thereOn,

' This inve uoareiates 't'o' 'a collapsible ai I rectingi' closurje orsleeve for u'se w ie ;h a iag a r'e'c'eptacale', and"-morfe particularlyfor' us'e 'by the ii Gil, can or the lils" constructed preferablyuofslightly heavier gauge, formedfrom 'a sheet of metal or other suitablematerial adapted when notin use to be collapsed sufiiciently to permitits insertion into for instance a standard Army G. I. can, with which itis intendedto be used, it being of practically the same height and of adiameter when surrounding the receptacle'to provide a small spacebetween same and the improved closure, said closure being of a, Verydurable and inexpensive material Similar numerals indicate correspondingparts in all the figures of the drawings in which:

Fig. 1 is a vertical section of a receptacle'sup-- port, showing areceptacle thereon, the improved heat directing closure or sleeveencircling the receptacle outside of the opening in the top of thereceptacle support and the currents of heat adjacent to the containerindicated by arrows.

Fig. 2 is a plan view of parts shown in Fig 1 with receptacle 5 andclosure 6 removed but indicated by dotted lines. Fig. 3 is aperspectiveview of the improved closure or sleeve.

Fig. 4 is a plan view of the closure collapsed as it will appearwithin areceptacle the latter being in dots. I

Fig. 5 is' a plan view, reduced in size, of the closure when flattenedout for transportation in Fig. 6 is a detail showing the separable connecting means at the adjacent edges of the seam in the closure.

V mania-rd, Jeffersonville, Ind. 'Apii i afifii oeitei16, 1942Serial:No.-46 2,;{72 I r qlClaim'. (01.126 9) the, act of March 3,1883,as l 'amendedfpril tp, 1928;; 370 o. c.1157) Fig.7 is adeta'il sectionof the'adjoining edges of the seam'of thefabove.

"Fig. 81s a detail' seiction of a modified form of scam at theadioiningf edgespof the closure,

Reference now'being hadto the drawings by 1 numerals, l isthe combinedstandard Army fire .unit carrying case and receptacle support, with theoutline of a fire unit 2 shown within the'case. The'case consists ofside, and rear walls la and l'b respectively and topana bottom plates 3and 311 respectively anda' 'hinged front wall lc for entrance o f'-the"fire within the receptacle support,

' 'The top plate' 37of "the case is provided with an openin'g d,soloc'ated that, when the fire unit is placed in-the'casethe bumer ofthe unit rests beneath the opening 4. v

The fire unit may be carried from place to place with its parts allprotected from injury, or the case may be placed on its bottom and areceptacle 5, to be heated, placed on top of the case. When throughopening 4 to the. receptacle 5 resting on top of the case.

When the heating of a receptacle is-being performed, without a heatdirecting closure herein shown, the heat from the fire unit passes upthrough opening 4 and into contact with the bottom of the receptacle andwill be practically immediately dissipated, said heat being wasted andin the event of winds or strong drafts, will not only be blown away romthe receptacle, but the burner may be extinguished or the flame from theburner may b blown int contact with adjacent objects, the legs of theattendant or cause other damage.

It is with a a view of meeting the above and other objectionableconditions that the herein described device was designed including theunique manner of transporting same singly or a limited number within thereceptacle, as well as one that may be flattened and shipped in largegroups in a relatively small space, all of which benefits are of primeimportance to the Army.

The improved collapsible heat directing closure 6 for use in heating areceptacle, is constructed of any suitable non-combustible material suchas sheet steel of, a gauge slightly heavier than stove pipe steel, isprovided, when bent into cylindrical form, with rolls lat the ends ofthe cylinder in sockets 9 formed at the ends of the rolls by theunoccupied portions of the wires, by withdrawing the wires from one endof the rolls and causing the wires to project at [0, beyond the oppositeends of the rolls. Said projections ID of the wires at one end of therolls are adapted to enter sockets 9 at the opposite ends of theirrespective rolls and firmly retainthe device in cylindrical form, bycoupling the parts together.

Th seam ll formed at the adjacent edges of the device when incylindrical form may be as shown, a butt joint or by slightlyoiisettingsaid: edges in opposite directions, provide a lap joint.

Handles 12 adapted to fold close toltheoute'r" face of the closure areso spaced thereon as to occupy opposite positions when it is incylindrical form, are provided for convenient handlingof the closure.

The operation of the device here shown is obvious, wherein the edges attheends of the sheet of metal are brought intocontact, and the extendingends of the wires at the. top and bottom of the then formed cylinder maybe introduced into the-socket, for their reception. at oppositerespective ends of the rolls, at the ends of the cylinder, in whichposition a very substantial and firm seam connection is provided whichwill not he accidentally separated,

Inv themanufacture of'the. closure it may be formed in such a manner asto havea tendency to, roll into a circumference less than it must assumewhen in use, which provides: dual benefits, namely, such a tendency toroll its, normal sizewhile inuse, provides for its automaticallyassuming a size when the, parts at the seam are. separated, that willpermit of its insertion into the receptacle with which it is used, andsaid tendency will also tend to hold the parts at the seam in place.Said tendency of the closure to collapse into a circumference less thanthat while in use, will not prevent the temporary flattening of theclosure if necessary during shipment in quantity.

' Having thus fully described my invention what I claim and desire tosecure by. Letters Patent is:

A collapsible heat-directing closure including a rectangular sheetformed of resilient material having longitudinal edges and transverseedges,

a hollow reinforcing bead extending along each longitudinal edge of thesheet and having a 7 coupling socket in, one terminal thereof, aresilient Wire within each bead and having one termirral extendingaxially beyond the bead to provide a coupling projection adapted to bereceived in a coupling socket, the transverse edges of the sheetbeingthickened and reinforced by flanges "contract maintains thecoupling projections in the sockets. and presseslthe reinforcedtransverse edgesof the sheet together.

T. HOWARD.

